Hart & Cooley 20" x 16" (Wall Opening Size) Fixed Blade Aluminum Filter Grille (RHF45LF4 Series)

Note: Size shown is approximate. Check the Submittal Drawing below for exact dimensions. Features: Fixed 45-degree blades 2-1/4" beveled frame Available in 4" filter depth Long, clear resin slide latches Thumbs screw options available (WTS) Extruded Aluminum Construction CFM capacity is equal to the filter capacity rating of two CFM persquare inch of gross filter area.